Firearms and Ammunition - As introduced, prohibits denying a law enforcement officer entry to or removing a law enforcement officer from an event for which the officer holds a valid ticket or has paid an admission fee if denial or removal is based on the officer’s lawful carrying of a firearm; permits owner or operator of venue for an event to require law enforcement officer to inform the owner or operator that the officer will be present at the event and in possession of a firearm. - Amends TCA Title 39, Chapter 17, Part 13.